Home / 860,002.60-1,290,263.10-460,834.60

Finding the Fourth Proportional to 860,002.60, 1,290,263.10 and 460,834.60

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Solution

The fourth proportional to 860,002.60, 1,290,263.10 and 460,834.60 is: 691,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,002.60 : 1,290,263.10 = 460,834.60 : x
  2. Step 2: Convert to fraction form
    860,002.60/1,290,263.10 = 460,834.60/x
  3. Step 3: Cross multiply
    860,002.60x = 1,290,263.10 × 460,834.60
  4. Step 4: Simplify right side
    860,002.60x = 594,597,879,583.26
  5. Step 5: Solve for x
    x = 594,597,879,583.26/860,002.60
  6. Step 6: Final answer
    x = 691,390.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.